1. Length
in the
Customary System

2. 3 feet = 1 yard 36 inches = 1 yard 5280 feet = 1 mile
Customary Units of Length
12 inches = 1 foot
3 feet = 1 yard
36 inches = 1 yard
5280 feet = 1 mile
1760 yards = 1 mile

3. To change larger units to smaller units, multiply.
Customary Units of Length
To change larger units to smaller units, multiply.
Use a bridge map to help make the conversions.

4. Bridge Map as
(just like)
Relating factor

5. Customary Length Conversion
Examples: 48
1 ft = 12 in
4 ft = _____ in
4 x 12 = 48
1 ft
4 ft as
12 in
(just like)
48 in
is equal to
Relating factor
X 12

6. Customary Length Conversion
Examples:
1 yd = 3ft
4 yd 2 ft = ___ft 14
4 x 3 = = 14
1 yd
4 yd 2 ft as
3 ft
(just like)
14 ft
is equal to
Relating factor
X 3 and + 2

7. To change smaller units to larger units, divide.
Customary Units of Length
To change smaller units to larger units, divide.
Use a bridge map to help make the conversions.

8. Bridge Map as
(just like)
Relating factor

9. Customary Length Conversion
Examples: 6
1 ft = 12 in
72 in = _____ ft
72 ÷ 12 = 6
1 ft
6 ft as
12 in
(just like)
72 in
is equal to
Relating factor
÷ 12

10. Customary Length Conversion
Examples: 82
3 ft = 1yd
246 ft = _____ yd
246 ÷ 3 = 82
3 ft
246 ft as
1 yd
(just like)
82 yd
is equal to
Relating factor
÷ 3